How do I go back to the open source driver?
I installed AMD driver following on screen instructions but have a little shaded square in bottom right hand corner that says “AMD Unsupported hardware”.
The Linux PDF says to use native package manager to uninstall driver, but I need to know what it is called to locate it.
Here is Solutions:
We have many solutions to this problem, But we recommend you to use the first solution because it is tested & true solution that will 100% work for you.
Here is the correct way to remove the ATI drivers:
sudo sh /usr/share/ati/fglrx-uninstall.sh sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev*
Note: ignore any errors you may have got form running the first 2 commands.
Remove your xorg.conf file
sudo rm /etc/X11/xorg.conf
sudo apt-get install --reinstall libgl1-mesa-glx:i386 libgl1-mesa-glx:amd64 libgl1-mesa-dri:i386 libgl1-mesa-dri:amd64 xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg
Source form Install ATI official drivers in Ubuntu
Note: Use and implement solution 1 because this method fully tested our system.
Thank you 🙂